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本发明涉及一种多级氧化沉降法治理黄磷工业废水的方法。采用化学氧化和物理沉降技术,以石灰石氧化床实现一级氧化、二级氧化,一级净化池处理阶段添加过量活性氯,用它实现二级氧化和杂质沉淀三级氧化。二级净化处理阶段,添加含活性的三氯化铁,以活性氯实现三级氧化,并利用三氯化铁作絮凝剂使杂质沉淀。
The present invention relates to a multi-stage oxidative precipitation method for treating yellow phosphorus industrial wastewater. Using chemical oxidation and physical sedimentation technology, primary oxidation and secondary oxidation are carried out on the limestone oxidation bed, excess activated chlorine is added during the primary purification tank treatment stage, and secondary oxidation and impurity precipitation tertiary oxidation are realized. Secondary purification stage, adding activity of ferric chloride, active chlorine to achieve tertiary oxidation, and the use of ferric chloride as a coagulant to precipitate impurities.